Wrench.



. WALKER.

. WRBNGE.

APPLIUATION FILED 06114, 1907.

91 1,096. Patented Feb. 2, 1909.

:ums cc.. wAsHlNcrara, .L cA

CHARLES WALLER, OF SEATTLE, WASHINGTON.

WRENCH.

Specification `of Letters Patent.

Patented Feb. 2, 1909.

Application filed October 14, 1907. Serial No.,397,439.

To all 'whom it may concern:

Be it known that I, CHARLES WALLER, a citizen of the United States of America, and a resident of the city of Seattle, in the county of King and State of Washington, have invented certain new and useful Im rovements in Wrenches, of which the fol owing is a specification.

My invention relates to improvements in wrenches and has for its primary object the provision of a comparatively simple construction through the medium of which the movable jaw can be ra idly adjusted.

A further object resi es in the provision of a comparatively inexpensive construction, embracing but few parts which can be readily removed when worn or broken.

Vlith these objects in view the invention resides in the construction and arrangement of parts hereinafter described, and larly pointed out in thea pended c aims.

ln the accompanying rawing, in which like numerals of reference indicate like parts throughout the several views: Figure 1 is a side elevation of a wrenchconstructed in accordance with my invention, parts being broken away. Fig. 2 is a section taken on line 2-2 of Fig. l, and Fig. 3 is a detail view in perspective of the dog.

Reference numeral 1 indicates the shank,

provided with a xed jaw 2 and handle 3,V

and formed in its forward face at points spaced well from its side edges with a channel or Vroove which is provided with ratchet teet as 4, said channel or groove being curved in cross section, (see Fig. 2).

Reference numeral 5 indicates the movable 6 adapted to fit snugly in the channel or groove of shank 1 and engage the ratchet teeth 4. Dog 6 is pivoted on a removable pin 7 and has an upwardly projecting eXtension 8 engaged by a s ring 9 which exerts pressure tending to ho d the dog in engagement with the ratchet'teeth.

A push pin 10 is slidably mounted in the wall of aw 5 for releasing dog 6, said inV having a thumb part 11 and a head 12 t e latter bearing on the extension 8 of the dog, as clearly illustrated. Head 12 is slightly convexed and at a point substantially o posite the same, spring 9 is curved outward y as at 9 to provide a guiding extension.

Iparticu- If do 6 needs replacing, it can be readily remove by first removing pin 7, then removing the do through the open lower end ,ofl jaw 5. To lnsert a new dog, the same is moved upwardly through the open lower end of jaw 5, extension 8 being engaged with and sliding on the inner face of the adjacent wall of the jaw until it encounters head 12. Head 12 being conveXed provides a cam surface over which the extension 8 of the dog will readily slide during the movement of the dog as just described. After having been brought to the osition shown in Fig. 1, wherein spring 9 ears on one face of eXtension 8 and head 12 on the other, pin 7 is engaged with the dog.V

While I have herein disclosed a construction which will carry out the various functions assigned to it, I reserve the right to make such changes in the minor details of construction as falls in the scope of the appended claims.

Having thus described my invention, what vl claim as new and desire to secure by Letlower portion open to provide a passagevway, a in removably secured in said slidable jaw, a og arranged on said pin for swinging into and out of engagement with the ratchet teeth of said shank, said dog having an upwardly projecting extension, a push pin slidably mounted in said last named jaw and provided at its inner end with a head bearing on the outer face of the extension of said dog, and a spring bearing on the inner face of the extension of said dog, the lower portion of Isaid spring lying opposite the head of said push f 1n and having a guiding extension curvedj from the inner side thereof, said head being conveXed to provide a cam surface for guiding the extension of said dog from the adjacentwall of the slidable jaw during the insertion of said dog, into osition therein.

Signed at Seattle, Was ington this 2nd day of October 1907.

CHARLES WALLER.

Witnesses JOHN W. FILKINs, SARAH B. FOLEY. 

